A paint company mixes it's paint with water to create more paint per gallon. They currently have ten gallon jugs which contain 10% water. How much water must they add to create a 80/20 mix of paint to water?
Is the answer 2 gallons or am I just dumb?
2012-08-20T12:10:44Z
Ahhh, ok. I wasn't thinking about the whole already there, just the water. I'm not used to doing this type of math lol, thanks.
toucan2012-08-20T12:35:34Z
The paint company wants to know how much water they must add to their current 10 gal jugs that are already mixed at a 9 gal paint : 1 gal water ratio.. Let x = the total number of gallons after adding the additional water There are currently 9 gal of water in a 90% (paint:water) mixture; we need to determine how many gal total will result in an 80% (paint:water) mixture So 9 gal is 80% of what volume 9 = 0.8x x = 9/(0.8) = 11.25 So if we already have 10 gal, then we need to add 1.25 gal more of water to each 10 gal jug 9 gal paint / 11.25 gal total = 0.8 or 80%